cottoned的音标

It wasn't until he started laughing that they cottoned on!他开始笑起来，他们才明白是怎么回事。She had already cottoned on to the fact that the nanny was not all she appeared.她已经意识到这个保姆不只是她看起来的那样。It was evidently from ulterior motives...

vi.喜欢（cotton的过去式与过去分词形式）...